All I know - there will be fight for your money, and taxes. And to fight bitcoin Government could soon introduce cryptodollar and all other altcoins will be declared illegal to use.
Declaring something illegal doesn't mean people won't use it.
Or is the world free of cocaine use, heroin use to just name 2 examples?Don't think so.
And I doubt that all governments on this planet would agree to one same thing.There will always be a few who will take advantage of a ban or stupid law in other countries.And why? Because there is a shitload of money to make with cryptos like Bitcoin!!